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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Higher
None of these
Lower
Same as

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

1.6
1.2
1
0.8

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Hydraulic jump
Depth of channel
Depth of flow in an open channel
Velocity of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Velocity of jet to the velocity of Pelton wheel
Diameter of Pelton wheel to the diameter of jet
Diameter of jet to the diameter of Pelton wheel
Velocity of Pelton wheel to the velocity of jet

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Hydraulics and Fluid Mechanics in ME
A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

Velocity head
Static head
Kinetic head
Manometric head

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Hydraulics and Fluid Mechanics in ME
A flow is called super-sonic if the

Discharge is difficult to measure
Velocity of flow is very high
Mach number is between 1 and 6
None of these

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